Marginal Propensity to consume refers to the percentage change in consumption for every one rupee of change in the income.
Additional income= Rs. 5,000 crores and change in savings= Rs. 500 crores.
change in consumption= 5000-500 = Rs. 4,500 crores.
MPC= change in consumption/ change in income
= 4500/5000= 0.9